Category:OC75
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English: OC75, an early germanium PNP bipolar junction transistor. These were mounted in a black-painted glass case.
Media in category "OC75"
The following 3 files are in this category, out of 3 total.
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OC75 germanium transistor.jpg 1,514 × 2,099; 277 KB
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OC75 green dot germanium transistor.jpg 1,013 × 1,883; 189 KB
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OC75 red dot germanium transistor.jpg 1,487 × 2,152; 324 KB
